/*
 * Copyright 2016 The Closure Compiler Authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/**
 * @fileoverview Tests that it is possible for an ES6 class to extend an ES3
 *     "class."
 */
goog.provide('ns.Unrestricted');

goog.require('goog.testing.jsunit');

/** @constructor */
var ThreeUnrestricted = function() {
  this.name = 'three';
};

/** @unrestricted */
var SixUnrestricted = class extends ThreeUnrestricted {
  constructor() {
    super();
    assertEquals('three', this.name);
    this.name = 'six';
  }
};

function testUnrestricted() {
  var s = new SixUnrestricted();
  assertEquals('six', s.name);
}



/** @constructor @struct */
var ThreeStruct = function() {
  this.name = 'three';
};

var SixStruct = class extends ThreeStruct {
  constructor() {
    super();
    assertEquals('three', this.name);
    this.name = 'six';
  }
};

function testStruct() {
  var s = new SixStruct();
  assertEquals('six', s.name);
}


/** @unrestricted */
ns.Unrestricted = class extends ThreeUnrestricted {};

function testUnrestrictedAssign() {
  var s = new ns.Unrestricted();
  s.newField = 0;  // Just testing to make sure new fields can be added.
}
